Home / 74,196.12-102,390.96-40,204.68

Finding the Fourth Proportional to 74,196.12, 102,390.96 and 40,204.68

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Solution

The fourth proportional to 74,196.12, 102,390.96 and 40,204.68 is: 55,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,196.12 : 102,390.96 = 40,204.68 : x
  2. Step 2: Convert to fraction form
    74,196.12/102,390.96 = 40,204.68/x
  3. Step 3: Cross multiply
    74,196.12x = 102,390.96 × 40,204.68
  4. Step 4: Simplify right side
    74,196.12x = 4,116,595,781.69
  5. Step 5: Solve for x
    x = 4,116,595,781.69/74,196.12
  6. Step 6: Final answer
    x = 55,482.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.